A 25 year-old HIV positive female experiences a gradual onse…
A 25 year-old HIV positive female experiences a gradual onset of malaise and anorexia, proceeding within a few weeks to photophobia, impaired consciousness and oculofacial palsy. After 14 days of incubation, an acid fast bacilli is isolated from CSF inoculated to modified middlebrook broth. A buff colored colony is isolated two days later from the inoculated Lowenstein-Jenson media. The organism stains with tests positive for niacin and nitrate. What is this organism?